.89 pounds
Because 7.12 divided by 8 is 0.89 pounds
Hey I can’t do everything cause I need to help my mum so I’ll do as much as I can so 1). -16
2). -25
3). 1
4). 4
All you need to do is get a calculator and find out how fast they can run by putting the equation given
Answer:

Step-by-step explanation:
Given

Required
Simplify
Expand brackets


Open all brackets

Collect Like Terms


<em>Hence, the polynomial simplifies to </em>
<em> and it has a degree of 2</em>
The mean calculated shows that the Chemistry score will be 87.
<h3>How to calculate the score?</h3>
From the information given, the total scores will be:
= 84 × 4
= 336
The addition of the scores given will be:
= 72 + 85 + 92
= 249
The Chemistry score will be:
= 336 - 249
= 87
<u>Complete question:</u>
If the mean of the data set is 84 points, find Harukas final exam score in Chemistry.
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